Sanitary napkin



FIG. 1 is a top perspective view of a sanitary napkin according to a first embodiment of the present invention;

FIG. 2 is a top plan view of the sanitary napkin shown in FIG. 1; and,

FIG. 3 is a bottom plan view of the sanitary napkin shown in FIG. 1. 

The ornamental design for a sanitary napkin, as shown and described. 